| Patents for C09B 55 - Azomethine dyes (1,049) |
|---|
| 02/07/1978 | US4072525 Silver halide photographic material containing two-equivalent color coupler |
| 01/31/1978 | US4071365 Silver halide emulsion containing two-equivalent yellow dye-forming coupler |
| 01/10/1978 | US4067889 Disperse dyestuffs |
| 12/20/1977 | US4064349 Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing them and their use |
| 11/22/1977 | US4059447 Photographic material containing oxazolinone-2 couplers |
| 10/04/1977 | US4052374 Unsymmetrical 1:2-chromium complexes containing an azo compound and an azomethine compound |
| 10/04/1977 | US4052212 Photographic silver halide emulsion containing 2-equivalent cyan coupler |
| 09/27/1977 | US4051119 Azomethine dyes derived from an o-hydroxy aromatic aldehyde and a 2-aminopyridine |
| 09/06/1977 | US4046575 Color photographic material containing 2-equivalent yellow couplers |
| 08/30/1977 | US4045424 Salt of a sulfonic acid substituted 1:2 metal complex dye with a basic dye and an amine |
| 08/23/1977 | US4044036 Metal complexes of bis-azomethines from hydroxy-aldehydes and alkylene diamines |
| 08/16/1977 | US4042611 Dyes and pigments for plastics, fibers, and paints |
| 08/16/1977 | US4042582 Mixtures of disazomethine and monoazo methine compounds, process for their preparation and their use as pigments |
| 08/16/1977 | US4042322 Process for dyeing anionically modified synthetic fiber materials |
| 07/26/1977 | US4038241 Polymer compositions containing a bisazomethine pigment |
| 07/05/1977 | US4033942 Chromium complex dye, including azo and azo methine dye compounds |
| 06/28/1977 | US4032347 2-equivalent acylacetamide yellow forming couplers with 2,6-dioxo-7-purinyl coupling off group |
| 06/28/1977 | US4032345 Silver halide materials containing photographic color couplers with isothiocyanato groups |
| 06/21/1977 | US4031130 Dialkyl ketone, dialkylcarbonate |
| 06/14/1977 | US4029508 Photography |
| 05/24/1977 | US4025089 Azomethine dyes |
| 05/10/1977 | US4022620 Silver halide, amine |
| 04/12/1977 | US4017476 Preparation of finely divided styrene-divinylbenzene organic pigments |
| 03/15/1977 | US4012259 Dicarbonyl methylene group on a 2,5-dioxo-1-imidazolidine is a yellow coupler |
| 03/15/1977 | US4012258 Poly-fluoro-alkyl magenta or cyan coupler |
| 03/15/1977 | US4012193 Bisazomethine dyes for metal-modified polyolefins |
| 03/08/1977 | US4011352 Dye precursors |
| 02/15/1977 | US4008225 Process for the manufacture of bis-azomethine metal complex colorants |
| 01/11/1977 | US4002619 Coumarine dyestuffs of the dispersion series |
| 01/11/1977 | US4002616 Polyesters |
| 12/21/1976 | US3998641 A 2-cyclotetramethylene sulfone-containing beta-ketoacetanilide |
| 11/09/1976 | US3990896 Yellow color forming couplers with 5-alkylidine-3-hydantoinyl groups |
| 10/26/1976 | US3988323 Metal complexes of bishydrazides |
| 10/05/1976 | US3984432 Color photographic recording material |
| 09/14/1976 | US3980430 Cationic dye, halogenated hydrocarbon |
| 08/31/1976 | US3978037 Polyamides |
| 08/10/1976 | US3974149 Azomethine pigments |
| 08/10/1976 | US3973968 Photographic acyl acetanilide color couplers with 2,5-dioxo-1-imidazolidinyl coupling off groups |
| 07/20/1976 | US3970649 Bisazomethine metal complexes |
| 06/29/1976 | US3966475 Photographic silver halide emulsions containing acylacetanilide color couplers |
| 06/15/1976 | US3963708 Bis-azomethine metal complex colorants from hydroxycoumarin derivatives or hydroxychromone derivatives |
| 06/08/1976 | US3962221 Preparation of disperse bisanil dyes derived from diaminomaleonitrile |
| 06/08/1976 | US3962220 One-step, aromatic aldehydes, acetic acid |
| 04/20/1976 | US3952009 Preparation of azomethines by reacting a 4,4-dihalo-5-pyrazolone with aromatic primary amines |
| 03/30/1976 | US3947516 2-hydroxy-naphthalene-3-carboxylic acid arylide |
| 03/02/1976 | US3941816 Stabilized oxichromic compounds |
| 02/17/1976 | US3939194 Bis-2-azomethine pigments, process for their manufacture and their use |
| 01/27/1976 | US3935263 Oxichromic compounds, stabilized oxichromic compounds and processes for preparing same |
| 01/27/1976 | US3935262 Reduced azomethine linkages |